.App {
  text-align: center;
}
div,
p,
span,
ul,
li,
a,
input {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-size: 0.28rem;
}
h1,
h2,
h3,
h5,
h6,
h4 {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ul,
ol,
dl {
  list-style: none;
}
a {
  color: black;
  text-decoration: none;
  outline: none;
}
input {
  border: none;
  outline: none;
}
.i{
  transform: rotate(180deg);
} 

.ask{
  font-size: 0.22rem;
}